Marine-Life

A free NOAA visitor center on Hilo Bay about Papahanaumokuakea, the enormous marine monument stretching northwest of the main Hawaiian islands. A 2,500-gallon reef aquarium and life-size models of monk seals and albatross hanging overhead do the heavy lifting for younger kids. Interactive displays and short films cover the atolls and the wildlife that lives there. It is small, maybe forty-five minutes, and it costs nothing, which makes it an easy add-on when a Hilo downpour derails everything. Right on the Bayfront near the farmers market.

A protected natural area on Maui south shore with excellent snorkeling in calm, clear water over lava rock reef. The reserve sits on the last lava flow on Maui and the underwater landscape of lava formations covered in coral is fascinating. Fish, turtles, and eels are common. The entry is over lava rock so water shoes are essential. There are no facilities and no lifeguards so this is for families comfortable with independent ocean swimming. The marine life here is abundant because the area is well protected.

A challenging but rewarding 3.5-mile round trip hike down (and back up) a steep trail to the Captain Cook Monument at the edge of Kealakekua Bay. The payoff is some of the best shore-access snorkeling in Hawaii in a marine sanctuary with spinner dolphins, tropical fish, and pristine coral. The hike down through dry scrubland drops about 1,400 feet. The climb back up in the heat is the hard part so bring extra water. For families with fit older kids who can handle the physical demands, the snorkeling at the bottom is genuinely world-class.

A unique snorkeling spot where warm water discharged from a nearby power plant attracts an incredible diversity of marine life. Spinner dolphins, sea turtles, eagle rays, and dense schools of fish are regularly seen in the warm outflow channel. The visibility is good and the marine life density is higher than almost anywhere else on Oahu. The entry is over rocks and there are no lifeguards so this is best for experienced swimmer families. When conditions are calm, the snorkeling is genuinely world-class and free.

A protected marine bay set inside a volcanic crater with the best easy snorkeling on Oahu. The reef is teeming with colorful fish that swim right up to you in shallow water. Kids are mesmerized from the moment they put their face in. A mandatory short educational video before entry teaches kids about reef conservation which makes the experience more meaningful. The beach is sandy with a gentle slope into calm turquoise water. Arrive early because the parking lot fills fast and the preserve caps daily visitors.

A marine sanctuary with crystal-clear water, incredible coral reefs, and abundant marine life that offers some of the best kayaking and snorkeling on the Big Island. Guided kayak tours cross the bay to the Captain Cook Monument where spinner dolphins are regularly seen and the snorkeling is world-class. The reef is teeming with tropical fish, eels, and sea turtles. The water clarity is exceptional. Kids who are comfortable swimming and kayaking will have one of the most memorable ocean experiences of their lives.

A world-class aquarium focused on Hawaii marine life with a 750,000-gallon open ocean exhibit you walk through in an underwater tunnel. Kids are transfixed by the sharks, rays, and tropical fish swimming overhead and all around them. Touch pools let kids handle sea stars and sea cucumbers. The exhibits are organized by habitat from shallow reef to deep ocean. A turtle lagoon features rescued Hawaiian green sea turtles. The Sphere is an immersive 3D whale experience. This is the best rainy-day option on Maui and worth a visit regardless of weather.

Maui is one of the best whale watching destinations in the world. Humpback whales migrate here every winter and the waters between Maui, Lanai, and Molokai are a prime calving ground. Boat tours regularly encounter breaching, tail slapping, and mother-calf pairs at close range. Kids are absolutely spellbound by these massive creatures. The Pacific Whale Foundation and other operators run multiple daily departures. Even from shore, whales are often visible from December through April. The experience is awe-inspiring at any age.

A boat trip to a partially submerged volcanic crater 3 miles offshore with some of the clearest water and best snorkeling in all of Hawaii. Visibility often exceeds 150 feet and the protected interior of the crescent-shaped crater is calm and teeming with tropical fish. Kids are amazed by the underwater visibility and the sheer number and variety of fish. Most tours include snorkel gear, breakfast, and lunch on board. Morning departures offer the calmest conditions. Sea turtles and sometimes reef sharks are spotted in the deeper areas.

Despite the name, this rocky cove on the North Shore is one of the best tide pool and snorkeling spots for families on Oahu. In calm summer conditions the water is clear and full of tropical fish, sea turtles, and interesting rock formations. The tide pools on the outer edges fascinate younger kids who can find sea urchins, crabs, and small fish. The name comes from the shape of the rocks, not from actual sharks. Waves in winter make it unsafe so this is strictly a summer destination.

One of the best shore-access snorkeling spots on Maui with a massive coral reef that extends far offshore in shallow calm water. Green sea turtles are almost guaranteed here and the reef is teeming with tropical fish. The water is shallow and calm making it accessible for kids who are new to snorkeling. The entry is sandy and the reef starts about 50 yards from shore. There are no facilities so bring everything you need. The reef extends for over a mile, so the further out you go, the more diverse the marine life becomes.

A protected beach park on the Hilo side with calm tide pools, a black sand beach, and an excellent chance of swimming with sea turtles. The lava rock forms natural pools that are sheltered from waves making it safe for kids to snorkel and explore. Green sea turtles feed on the algae growing on the rocks and sightings are almost guaranteed. The park has restrooms, showers, and lifeguards. The tide pools are fascinating for younger kids who can find sea urchins, crabs, and small fish. This is the best family snorkeling spot near Hilo.

Natural lava rock tide pools on the coast below the Makapu u Lighthouse Trail that fill with ocean water and create natural swimming holes. The pools range from shallow wading depth to deeper plunge pools. Kids love exploring the marine life in the shallows and swimming in the protected pools. Access requires a scramble over rocky lava terrain so this is best for sure-footed older kids. Waves can wash over the rocks so always check conditions and keep an eye on the ocean. When conditions are right, these pools are magical.